Largest Schools in DeKalb County (2025)

Schools with the highest enrollment. Ranked by the Success Index (US) from official American data; 100 schools in DeKalb County, Georgia. Rank positions shown on each profile are within United States and Georgia.

#	School	Sector	Enrollment	Success Index (US)	Key result	Students
1	Lakeside High School Atlanta · High · Grades 9–12	Public	2,234	52.8 Top 50%	43% Math proficiency	2,234
2	Dunwoody High School Dunwoody · High · Grades 9–12	Public	2,012	58.3 Top 50%	43% Math proficiency	2,012
3	Chamblee High School Chamblee · High · Grades 9–12	Public	1,867	58.6 Top 50%	52% Math proficiency	1,867
4	Cross Keys High School Brookhaven · High · Grades 9–12	Public	1,748	30.4 Lower 50%	44% Math proficiency	1,748
5	Sequoyah Middle School Atlanta · Middle · Grades 6–8	Public	1,713	15.8 Lower 50%	19% Math proficiency	1,713
6	Tucker High School Tucker · High · Grades 9–12	Public	1,614	26.3 Lower 50%	26% Math proficiency	1,614
7	Lithonia High School Lithonia · High · Grades 9–12	Public	1,547	12.2 Lower 50%	14% Math proficiency	1,547
8	Druid Hills High School Atlanta · High · Grades 9–12	Public	1,468	44.7 Lower 50%	34% Math proficiency	1,468
9	Clarkston High School Clarkston · High · Grades 9–12	Public	1,441	20.1 Lower 50%	25% Math proficiency	1,441
10	Martin Luther King- Jr. High School Lithonia · High · Grades 9–12	Public	1,370	11.7 Lower 50%	12% Math proficiency	1,370
11	Henderson Middle School Chamblee · Middle · Grades 6–8	Public	1,367	47.9 Lower 50%	47% Math proficiency	1,367
12	Stephenson High School Stone Mountain · High · Grades 9–12	Public	1,339	19.5 Lower 50%	24% Math proficiency	1,339
13	Freedom Middle School Stone Mountain · Middle · Grades 6–8	Public	1,272	12.0 Lower 50%	19% Math proficiency	1,272
14	Stone Mountain High School Stone Mountain · High · Grades 9–12	Public	1,254	13.0 Lower 50%	12% Math proficiency	1,254
15	Southwest DeKalb High School Decatur · High · Grades 9–12	Public	1,237	19.2 Lower 50%	20% Math proficiency	1,237
16	Arabia Mountain High School - Academy of Engineering- Medic Lithonia · High · Grades 9–12	Public	1,224	42.6 Lower 50%	34% Math proficiency	1,224
17	Peachtree Middle School Atlanta · Middle · Grades 6–8	Public	1,214	52.0 Top 50%	44% Math proficiency	1,214
18	Tucker Middle School Tucker · Middle · Grades 6–8	Public	1,173	28.8 Lower 50%	34% Math proficiency	1,173
19	Cedar Grove High School Ellenwood · High · Grades 9–12	Public	1,121	18.9 Lower 50%	26% Math proficiency	1,121
20	GLOBE Academy Charter School I Atlanta · Elementary · Grades K–8	Charter	1,093	80.1 Top 10%	62% Math proficiency	1,093
21	Miller Grove High School Lithonia · High · Grades 9–12	Public	1,073	14.7 Lower 50%	16% Math proficiency	1,073
22	Lithonia Middle School Lithonia · Middle · Grades 6–8	Public	1,062	11.4 Lower 50%	13% Math proficiency	1,062
23	Redan High School Stone Mountain · High · Grades 9–12	Public	1,052	11.5 Lower 50%	17% Math proficiency	1,052
24	Chamblee Middle School Chamblee · Middle · Grades 6–8	Public	1,018	75.1 Top 25%	63% Math proficiency	1,018
25	Doraville United Elementary School Atlanta · Elementary · Grades PK–5	Public	1,003	23.2 Lower 50%	99.6% Free/reduced-price lunch	1,003
26	Stone Mountain Middle School Stone Mountain · Middle · Grades 6–8	Public	986	15.4 Lower 50%	20% Math proficiency	986
27	Druid Hills Middle School Decatur · Middle · Grades 6–8	Public	985	44.6 Lower 50%	41% Math proficiency	985
28	Flat Rock Elementary School Lithonia · Elementary · Grades PK–5	Public	977	10.6 Lower 50%	14% Math proficiency	977
29	Indian Creek Elementary School Clarkston · Elementary · Grades PK–5	Public	967	22.7 Lower 50%	36% Math proficiency	967
30	Rockbridge Elementary School Stone Mountain · Elementary · Grades PK–5	Public	900	20.2 Lower 50%	30% Math proficiency	900
31	Fernbank Elementary School Atlanta · Elementary · Grades PK–5	Public	895	58.5 Top 50%	50% Math proficiency	895
32	Idlewood Elementary School Tucker · Elementary · Grades PK–5	Public	889	23.0 Lower 50%	33% Math proficiency	889
33	Columbia High School Decatur · High · Grades 9–12	Public	877	11.8 Lower 50%	7% Math proficiency	877
34	Towers High School Decatur · High · Grades 9–12	Public	876	11.2 Lower 50%	12% Math proficiency	876
35	Barack H. Obama Elementary Magnet School of Technology Atlanta · Elementary · Grades PK–5	Public	844	11.5 Lower 50%	23% Math proficiency	844
36	John Robert Lewis Elementary School Brookhaven · Elementary · Grades PK–5	Public	840	39.6 Lower 50%	87.9% Free/reduced-price lunch	840
37	Salem Middle School Lithonia · Middle · Grades 6–8	Public	827	15.5 Lower 50%	16% Math proficiency	827
38	Austin Elementary School Dunwoody · Elementary · Grades PK–5	Public	803	89.4 Top 5%	90% Math proficiency	803
39	Pleasantdale Elementary School Doraville · Elementary · Grades PK–5	Public	794	31.4 Lower 50%	38% Math proficiency	794
40	Dunwoody Elementary School Dunwoody · Elementary · Grades PK–5	Public	790	84.5 Top 10%	74% Math proficiency	790
41	Jolly Elementary School Clarkston · Elementary · Grades PK–5	Public	790	12.4 Lower 50%	21% Math proficiency	790
42	Stephenson Middle School Stone Mountain · Middle · Grades 6–8	Public	788	18.9 Lower 50%	19% Math proficiency	788
43	The Champion Middle Theme School Stone Mountain · Middle · Grades 6–8	Public	782	43.0 Lower 50%	49% Math proficiency	782
44	Stoneview Elementary School Lithonia · Elementary · Grades PK–5	Public	782	12.8 Lower 50%	16% Math proficiency	782
45	McNair High School Atlanta · High · Grades 9–12	Public	779	15.6 Lower 50%	7% Math proficiency	779
46	DeKalb Arts Academy Avondale Estates · Elementary · Grades K–8	Public	768	54.2 Top 50%	48% Math proficiency	768
47	DeKalb Agriculture Technology and Environment School Stone Mountain · Elementary · Grades K–8	Charter	760	39.7 Lower 50%	49% Math proficiency	760
48	Ashford Park Elementary School Atlanta · Elementary · Grades PK–5	Public	757	81.5 Top 10%	66% Math proficiency	757
49	Princeton Elementary School Lithonia · Elementary · Grades PK–5	Public	751	25.4 Lower 50%	35% Math proficiency	751
50	Peachcrest Elementary School Decatur · Elementary · Grades PK–5	Public	729	11.7 Lower 50%	16% Math proficiency	729
51	Montgomery Elementary School Brookhaven · Elementary · Grades PK–5	Public	728	77.8 Top 25%	66% Math proficiency	728
52	McNair Middle School Decatur · Middle · Grades 6–8	Public	701	11.9 Lower 50%	8% Math proficiency	701
53	Oak View Elementary Decatur · Elementary · Grades PK–5	Public	685	15.1 Lower 50%	21% Math proficiency	685
54	Cedar Grove Middle School Decatur · Middle · Grades 6–8	Public	685	14.5 Lower 50%	15% Math proficiency	685
55	Mary McLeod Bethune Middle School Decatur · Middle · Grades 6–8	Public	655	13.9 Lower 50%	9% Math proficiency	655
56	Miller Grove Middle School Decatur · Middle · Grades 6–8	Public	625	13.3 Lower 50%	11% Math proficiency	625
57	Redan Middle School Lithonia · Middle · Grades 6–8	Public	623	17.5 Lower 50%	19% Math proficiency	623
58	Oakcliff Elementary School Doraville · Elementary · Grades PK–5	Public	621	31.1 Lower 50%	40% Math proficiency	621
59	Allgood Elementary School Stone Mountain · Elementary · Grades PK–5	Public	614	25.8 Lower 50%	31% Math proficiency	614
60	Chapel Hill Middle School Decatur · Middle · Grades 6–8	Public	614	20.4 Lower 50%	23% Math proficiency	614
61	Dresden Elementary School Chamblee · Elementary · Grades PK–5	Public	606	22.9 Lower 50%	27% Math proficiency	606
62	Hightower Elementary School Doraville · Elementary · Grades PK–5	Public	604	23.0 Lower 50%	27% Math proficiency	604
63	Stone Mill Elementary School Stone Mountain · Elementary · Grades PK–5	Public	601	17.7 Lower 50%	27% Math proficiency	601
64	Edward L. Bouie- Sr. Elementary School Lithonia · Elementary · Grades PK–5	Public	599	39.2 Lower 50%	44% Math proficiency	599
65	Montclair Elementary School Brookhaven · Elementary · Grades PK–5	Public	590	22.5 Lower 50%	20% Math proficiency	590
66	Museum School Avondale Estates Avondale Estates · Elementary · Grades K–8	Charter	588	73.3 Top 25%	56% Math proficiency	588
67	Columbia Middle School Decatur · Middle · Grades 6–8	Public	571	17.4 Lower 50%	12% Math proficiency	571
68	Woodward Elementary School Brookhaven · Elementary · Grades PK–5	Public	553	20.6 Lower 50%	17% Math proficiency	553
69	Kittredge Magnet School Atlanta · Middle · Grades 4–6	Public	552	91.0 Top 5%	98% Math proficiency	552
70	Chesnut Elementary School Dunwoody · Elementary · Grades PK–5	Public	551	71.1 Top 25%	62% Math proficiency	551
71	Pine Ridge Elementary School Stone Mountain · Elementary · Grades PK–5	Public	551	19.1 Lower 50%	25% Math proficiency	551
72	Panola Way Elementary School Lithonia · Elementary · Grades PK–5	Public	550	8.9 Lower 50%	15% Math proficiency	550
73	Wynbrooke Elementary School Stone Mountain · Elementary · Grades PK–5	Public	546	53.3 Top 50%	56% Math proficiency	546
74	Henderson Mill Elementary School Atlanta · Elementary · Grades PK–5	Public	541	48.1 Lower 50%	51% Math proficiency	541
75	Smoke Rise Elementary School Stone Mountain · Elementary · Grades PK–5	Public	539	44.1 Lower 50%	42% Math proficiency	539
76	DeKalb Preparatory Academy Charter Decatur · Elementary · Grades K–8	Charter	537	17.8 Lower 50%	24% Math proficiency	537
77	Hambrick Elementary School Stone Mountain · Elementary · Grades PK–5	Public	536	22.5 Lower 50%	32% Math proficiency	536
78	Narvie Harris Elementary School Decatur · Elementary · Grades PK–5	Public	535	48.9 Lower 50%	51% Math proficiency	535
79	Cedar Grove Elementary School Ellenwood · Elementary · Grades PK–5	Public	531	14.2 Lower 50%	20% Math proficiency	531
80	Redan Elementary School Lithonia · Elementary · Grades PK–5	Public	525	13.4 Lower 50%	14% Math proficiency	525
81	Rock Chapel Elementary School Lithonia · Elementary · Grades PK–5	Public	524	19.6 Lower 50%	28% Math proficiency	524
82	Avondale Elementary School Avondale Estates · Elementary · Grades PK–5	Public	521	26.8 Lower 50%	32% Math proficiency	521
83	Murphey Candler Elementary School Lithonia · Elementary · Grades PK–5	Public	512	14.3 Lower 50%	14% Math proficiency	512
84	Huntley Hills Elementary School Chamblee · Elementary · Grades PK–5	Public	507	42.1 Lower 50%	45% Math proficiency	507
85	Evansdale Elementary School Doraville · Elementary · Grades PK–5	Public	504	49.7 Lower 50%	45% Math proficiency	504
86	International Community School Decatur · Elementary · Grades K–5	Charter	501	28.0 Lower 50%	37% Math proficiency	501
87	Chapel Hill Elementary School Decatur · Elementary · Grades PK–5	Public	495	18.5 Lower 50%	25% Math proficiency	495
88	Shadow Rock Elementary School Lithonia · Elementary · Grades PK–5	Public	493	13.5 Lower 50%	19% Math proficiency	493
89	Briar Vista Elementary School Atlanta · Elementary · Grades PK–5	Public	482	49.2 Lower 50%	47% Math proficiency	482
90	Ronald E McNair Discover Learning Academy Elementary School Decatur · Elementary · Grades PK–5	Public	475	14.0 Lower 50%	18% Math proficiency	475
91	Fairington Elementary School Lithonia · Elementary · Grades PK–5	Public	461	14.5 Lower 50%	15% Math proficiency	461
92	Stone Mountain Elementary School Stone Mountain · Elementary · Grades PK–5	Public	453	14.5 Lower 50%	13% Math proficiency	453
93	Eldridge L. Miller Elementary School Stone Mountain · Elementary · Grades PK–5	Public	450	17.3 Lower 50%	26% Math proficiency	450
94	Canby Lane Elementary School Decatur · Elementary · Grades PK–5	Public	446	14.4 Lower 50%	16% Math proficiency	446
95	Woodridge Elementary School Stone Mountain · Elementary · Grades PK–5	Public	444	14.7 Lower 50%	22% Math proficiency	444
96	Vanderlyn Elementary School Dunwoody · Elementary · Grades PK–5	Public	441	90.0 Top 5%	85% Math proficiency	441
97	Laurel Ridge Elementary School Decatur · Elementary · Grades PK–5	Public	440	70.7 Top 25%	61% Math proficiency	440
98	Dunaire Elementary School Stone Mountain · Elementary · Grades PK–5	Public	432	15.1 Lower 50%	20% Math proficiency	432
99	Oak Grove Elementary School Atlanta · Elementary · Grades PK–5	Public	429	89.2 Top 5%	75% Math proficiency	429
100	Sagamore Hills Elementary School Atlanta · Elementary · Grades PK–5	Public	428	71.8 Top 25%	57% Math proficiency	428

Lakeside High School in Atlanta leads the 2025 list of largest schools in DeKalb County with Enrollment 2,234. Of the 100 schools shown, 95 are public, 5 are charter.

For the full picture see the wider Georgia largest schools rankings, every school on the DeKalb County page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best largest school in DeKalb County?

Lakeside High School in Atlanta, Georgia ranks first among largest schools in DeKalb County with Enrollment 2,234 (Enrollment: 2,234).

How are largest schools in DeKalb County ranked?

Schools with the highest enrollment. Only schools eligible for the Success Index (US) are included; the index is shown alongside for context.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.